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Post by brates33 on Jan 3, 2024 19:03:15 GMT
I had this machine pulled twice on 11/28/2023 and 11/29/2023. It was failing neg stabilize sometimes and the rest of the time failing neg flow on. In November I put in a new dearation motor and a new flow motor it passed test. Now today it is failing again. I replaced the pump head on the dearation motor. It is still not 255 where it should be it says 25. There are no leaks in the machine and I have tried the positive pressure test. Nothing is working and I am running out of ideas.
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Post by gfreely on Jan 3, 2024 19:57:46 GMT
I believe the UF pump is what pulls your negative pressure for the test. I have seen the pump cause negative pressure test fails.
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stuff
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Post by stuff on Jan 3, 2024 19:59:07 GMT
This could also be pressure transducer 9 or 10
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Post by brates33 on Jan 3, 2024 20:00:31 GMT
Thank you I will look into those things and see if I can locate the problem.
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Post by dave74 on Jan 3, 2024 20:31:43 GMT
If you remove the fluid sampler, which is the outflow from the UF pump, from its port, the fluid should come out in strong pulses.
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Post by gnurk on Jan 4, 2024 13:11:25 GMT
your dac value should not be 255 that is maxed out adjust it so your deairation is a -24 your dac should be about 190 not 25
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Post by dave74 on Jan 4, 2024 14:55:16 GMT
I misread the original post. I apologize.
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